CN202430700U - Continuous lifting device for large-tonnage upper assembly block of ocean platform - Google Patents
Continuous lifting device for large-tonnage upper assembly block of ocean platform Download PDFInfo
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- CN202430700U CN202430700U CN 201120558098 CN201120558098U CN202430700U CN 202430700 U CN202430700 U CN 202430700U CN 201120558098 CN201120558098 CN 201120558098 CN 201120558098 U CN201120558098 U CN 201120558098U CN 202430700 U CN202430700 U CN 202430700U
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- ocean platform
- tonnage
- lifting
- boss
- continuous lifting
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Abstract
The utility model relates to a continuous lifting device for a large-tonnage upper assembly block of an ocean platform. The device comprises two support side walls arranged oppositely, a #-shaped frame arranged between the two support side walls, and a standard node arranged on the #-shaped frame, wherein the bottoms of the support side walls are fixed on a foundation, a hydraulic lifter is arranged at the tops of the support side walls, a ground anchor of a steel strand in the hydraulic lifter is fixed at the bottom of the #-shaped frame, the standard node is connected with a support leg of the upper assembly block of the ocean platform, and the hydraulic lifter is connected with a pump station and a remote central control device. The continuous lifting device is simple in construction, convenient to assemble, can be used for continuously lifting the large-tonnage upper assembly block, and also can realize accurate positioning and speed control in multi-point continuous lifting operation and multi-point synchronous lifting operation. The continuous lifting device has the advantages of improving bearing capacity, lifting height, lifting speed and synchronous lifting displacement accuracy, shortening the building period of the ocean platform and reducing the building cost. The continuous lifting device provides a basis for design of a large-tonnage upper assembly block lifting system in the future.
Description
Technical field
The utility model relates to lifting appliance, relates in particular to the continuous lifting appliance of a kind of large-tonnage ocean platform upper chunk.Belong to offshore oil engineering field.
Background technology
The exploitation of marine oil and gas resource need be arranged the offshore platform of some at sea.Offshore platform mainly contains two types: fixed platform, floating platform.
The offshore oil fixed platform generally comprises: upper chunk and fixed support structure under water.This type of offshore platform generally be with upper chunk and under water fixed support structure build separately on land, and adopt floating holder method to carry out marine installation exercise.In the shipping process of large-scale upper chunk, need between its underpart and ship deck, arrange the lower support structure usually.For floating platform, form by upper chunk and bottom buoyancy aid as the one of which, before Qi Xiashui, need in the place usually or group that dock is accomplished its upper chunk and bottom buoyancy aid to working.In the assembling process, upper chunk need be promoted to certain height earlier, so that lower support structure or bottom buoyancy aid are inserted or transportation.Therefore, the lifting of upper chunk is an important ring of whole assembling process, directly has influence on the construction period and the cost of production of ocean platform.
At present; Existing upper chunk lifting appliance comprises: the lifting pylon that is located at the suspension centre of the both sides on ocean platform deck, the installation of corresponding hoisting point position; The height of pylon is equipped with hydraulic rockshaft by the hoisting depth decision of ocean platform on the top of pylon, and the lower end of steel strand is fixed on the suspension centre structure in the hydraulic rockshaft; Pull steel strand continuously through hydraulic rockshaft, in order to realize the lifting of ocean platform upper chunk.
Along with the continuous expansion of offshore oil production scope, for adapting to the adverse circumstances of recovering the oil in the deep-sea, the tonnage of ocean platform demonstrates increasing trend, and existing upper chunk lifting appliance can't satisfy job requirements, and the problem of its existence is following:
1. the maximum lift tonnage owing to existing upper chunk lifting appliance is 31000 tons, and can't be applied to the more lifting operation of large-tonnage ocean platform upper chunk, and therefore, it is limited that it promotes tonnage.
2. according to ocean platform construction characteristics separately, existing upper chunk lifting appliance can't satisfy the job requirements of 60 meters hoisting depths, and therefore, its hoisting depth is limited.
3. because existing upper chunk lifting appliance hoisting velocity is less, and the tonnage of ocean platform is big more, causes its activity duration long more, therefore, its hoisting velocity is limited.
4. because to promote the trueness error scope big more, be unfavorable for the even carrying of lifting appliance more, the ocean platform upper chunk that also is unfavorable for being raised stressed, therefore, the tonnage of ocean platform is big more, and it is limited more that it promotes precision synchronously.
The utility model content
The main purpose of the utility model is to overcome the above-mentioned shortcoming that prior art exists; And provide a kind of large-tonnage ocean platform upper chunk continuous lifting appliance; Its construction is simple, easy for installation, not only can realize the continuous lifting of large-tonnage upper chunk; And, can solve the lifting appliance multiple spot and promote continuously and accurately locate in promoting synchronously with multiple spot and the technical barrier of speed controlling; Improve supporting capacity, hoisting depth, hoisting velocity, promoted displacement accuracy synchronously, shortened the construction period of ocean platform, reduced construction cost; For the design of large-tonnage upper chunk Hoisting System in the future provides foundation.
The purpose of the utility model is realized by following technical scheme:
The continuous lifting appliance of a kind of large-tonnage ocean platform upper chunk; It is characterized in that: comprise that two of relative placement support side walls, are installed in two and support well cabinet frame between the side wall, be installed in the standard knot on the well cabinet frame; Wherein, support the side wall bottom and be fixed on the ground, the top is equipped with hydraulic rockshaft; The earth anchorage of steel strand is in the bottom of well cabinet frame in the hydraulic rockshaft, and the supporting leg of standard knot and ocean platform upper chunk links together; Hydraulic rockshaft is connected with pumping plant and remote central control device.
Said support side wall is to be connected and composed by the pull bar that is positioned at rear side, first boss, three parts that are arranged on the box body in centre position and are installed in the front side, and pull bar, box body and first boss are steel work; Hydraulic rockshaft is installed on first boss that is positioned at the front side, and the steel strand in the hydraulic rockshaft pass the through hole on first boss of front side, is fixed in the soffit of well cabinet frame through steel strand ground anchor; Middle box body and back lateral bracing strut all link to each other with ground.
Said well cabinet frame is: the detachable structure that is connected and composed by two support frames; The middle part of the support frame that two mutual correspondences are installed together is formed with a circular hole; Two curb girders are provided with several through holes, and the well cabinet frame is provided with second boss, and this second boss is stuck on the snap ring of standard knot.
Said remote central control device is a computer.
The beneficial effect of the utility model:
1. improved supporting capacity, total supporting capacity reaches 35000 tons.
2. improved hoisting depth, hoisting depth can reach 60 meters.
3. improved hoisting velocity, the hoisting velocity of full load reaches: 3-4 rice/hour, the hoisting velocity when unloaded reaches: 6-8 rice/hour.
4. improved synchronous lifting displacement accuracy, promoted displacement accuracy synchronously and be: ± 5mm, and control the hydraulic synchronizing lifting device in real time.
5. can realize the continuous lifting of large-tonnage upper chunk, shorten the lifting working time.
6. simple installation has shortened time of the work that promotes.
7. for the design of large-tonnage upper chunk Hoisting System in the future foundation is provided.
Description of drawings:
Fig. 1 looks sketch map for the utility model overall structure master.
Fig. 2 supports the side wall schematic perspective view for the utility model.
Fig. 3 is the utility model well cabinet frame overall structure sketch map.
Fig. 4 is the one-sided well cabinet frame of a utility model structural representation.
Fig. 5 is the utility model standard knot structural representation.
Main label declaration among the figure:
1. support side wall, 2. well cabinet frame, 3. standard knot, 4. hydraulic rockshaft, 5. pull bar, 6. box body, 7. boss, 8 support frames, 9 support frames, 10 circular holes, 11 curb girders, 12 through holes, 13 boss, 14 snap rings.
The specific embodiment
Like Fig. 1-shown in Figure 5, the utility model comprises: two that place are relatively supported side walls 1, are installed in two well cabinet frames 2 that support between the side wall 1; Be installed in the standard knot 3 on the well cabinet frame 2, wherein, support side wall 1 bottom and link to each other with ground through stone bolt; During use, will support side wall 1 and be fixed on the ground, the top of supporting side wall 1 is equipped with hydraulic rockshaft 4; Hydraulic rockshaft is connected present embodiment with pumping plant and remote central control device: the remote central control device is a computer.
The earth anchorage of steel strand is in the bottom of well cabinet frame 2 in the hydraulic rockshaft 4; Well cabinet frame 2 is stuck on the snap ring of the standard knot 3 that is positioned at bottommost; Standard knot 3 links together through the supporting leg of flange and ocean platform upper chunk; Thereby, the pulling force of hydraulic rockshaft 4 is reached on the standard knot 3 from well cabinet frame 2, reach again on the supporting leg of ocean platform upper chunk.Under the continuous pulling effect of the steel strand in hydraulic rockshaft 4, realize the continuous lifting of ocean platform upper chunk.
Present embodiment: standard knot 3 is several, connects through flange between several standard knots 3.
Well cabinet frame 2 is: the detachable structure that is connected and composed by two support frames 8,9; To make things convenient for the dismounting of well cabinet frame 2; The middle part of the support frame 8,9 that two mutual correspondences are installed together is formed with a circular hole 10; Two curb girders 11 are provided with several through holes 12, and well cabinet frame 2 is provided with boss 13, and boss 13 is stuck on the snap ring 14 of standard knot 3.
Under the lifting state; The steel strand of hydraulic rockshaft 4 pass the through hole 12 that is located on 2 liang of curb girders 11 of well cabinet frame; Steel strand ground anchor is fixed on the soffit of well cabinet frame 2; The boss 13 that is located on the well cabinet frame 2 is stuck on the snap ring 14 of standard knot 3, the pulling force of hydraulic rockshaft 4 finally is passed on the standard knot 3, to realize the continuous lifting of ocean platform upper chunk.
During use, the utility model as suspension centre, is installed eight covers with eight supporting leg places of ocean platform altogether, by hydraulic rockshaft 4 pulling force is provided, and accomplishes to promote action.Whole lifting process adopts the displacement transducer that is installed on the hydraulic rockshaft 4 to carry out complete monitoring, with accurate location and the speed controlling that guarantees that multiple spot promotes synchronously.
Above-mentioned standard knot 3, hydraulic rockshaft 4, pumping plant are prior art.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Every technical spirit according to the utility model all still belongs in the scope of the utility model technical scheme any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1. continuous lifting appliance of large-tonnage ocean platform upper chunk; It is characterized in that: comprise that two of relative placement support side walls, are installed in two and support well cabinet frame between the side wall, be installed in the standard knot on the well cabinet frame; Wherein, support the side wall bottom and be fixed on the ground, the top is equipped with hydraulic rockshaft; The earth anchorage of steel strand is in the bottom of well cabinet frame in the hydraulic rockshaft, and the supporting leg of standard knot and ocean platform upper chunk links together; Hydraulic rockshaft is connected with pumping plant and remote central control device.
2. the continuous lifting appliance of large-tonnage ocean platform upper chunk according to claim 1; It is characterized in that: said support side wall is to be connected and composed by the pull bar that is positioned at rear side, first boss, three parts that are arranged on the box body in centre position and are installed in the front side, and pull bar, box body and first boss are steel work; Hydraulic rockshaft is installed on first boss that is positioned at the front side, and the steel strand in the hydraulic rockshaft pass the through hole on first boss of front side, is fixed in the soffit of well cabinet frame through steel strand ground anchor; Middle box body and back lateral bracing strut all link to each other with ground.
3. the continuous lifting appliance of large-tonnage ocean platform upper chunk according to claim 1; It is characterized in that: said well cabinet frame is: the detachable structure that is connected and composed by two support frames; The middle part of the support frame that two mutual correspondences are installed together is formed with a circular hole; Two curb girders are provided with several through holes, and the well cabinet frame is provided with second boss, and this second boss is stuck on the snap ring of standard knot.
4. the continuous lifting appliance of large-tonnage ocean platform upper chunk according to claim 1, it is characterized in that: said remote central control device is a computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120558098 CN202430700U (en) | 2011-12-28 | 2011-12-28 | Continuous lifting device for large-tonnage upper assembly block of ocean platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120558098 CN202430700U (en) | 2011-12-28 | 2011-12-28 | Continuous lifting device for large-tonnage upper assembly block of ocean platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202430700U true CN202430700U (en) | 2012-09-12 |
Family
ID=46780161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120558098 Expired - Fee Related CN202430700U (en) | 2011-12-28 | 2011-12-28 | Continuous lifting device for large-tonnage upper assembly block of ocean platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202430700U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153337A (en) * | 2014-08-25 | 2014-11-19 | 中国海洋石油总公司 | Ocean platform blocking passive traction lifting mounting method |
| US10479641B2 (en) | 2016-02-24 | 2019-11-19 | Halliburton Energy Services, Inc. | Adjustment and repositioning of coiled tubing tensioning device while deployed |
-
2011
- 2011-12-28 CN CN 201120558098 patent/CN202430700U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153337A (en) * | 2014-08-25 | 2014-11-19 | 中国海洋石油总公司 | Ocean platform blocking passive traction lifting mounting method |
| US10479641B2 (en) | 2016-02-24 | 2019-11-19 | Halliburton Energy Services, Inc. | Adjustment and repositioning of coiled tubing tensioning device while deployed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20181228 |